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Fix null pointer exception for observatory 

Core setup router object first, when InjectContext() is called, observatory object is still null,
so observatory need to be injected after InjectContext()
This commit is contained in:
yuhan6665 2021-11-13 23:23:38 -05:00
parent d6ae4e9ba2
commit 7c240e8630
1 changed files with 7 additions and 4 deletions
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11
app/router/strategy_leastping.go
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@ -15,14 +15,17 @@ type LeastPingStrategy struct {
} }
func (l *LeastPingStrategy) InjectContext(ctx context.Context) { func (l *LeastPingStrategy) InjectContext(ctx context.Context) {
common.Must(core.RequireFeatures(ctx, func(observatory extension.Observatory) error {
l.observatory = observatory
return nil
}))
l.ctx = ctx l.ctx = ctx
} }
func (l *LeastPingStrategy) PickOutbound(strings []string) string { func (l *LeastPingStrategy) PickOutbound(strings []string) string {
if l.observatory == nil {
common.Must(core.RequireFeatures(l.ctx, func(observatory extension.Observatory) error {
l.observatory = observatory
return nil
}))
}
observeReport, err := l.observatory.GetObservation(l.ctx) observeReport, err := l.observatory.GetObservation(l.ctx)
if err != nil { if err != nil {
newError("cannot get observe report").Base(err).WriteToLog() newError("cannot get observe report").Base(err).WriteToLog()